clean()
left()
, right()
and mid()
len()
replace()
, substitute()
rept()
lower()
, upper()
trim()
isText()
unicode()
, unichar()
clean()
code()
concat()
, concatenate()
, textJoin()
exact()
find()
, search()
fixed()
isText()
, isNonText()
proper()
text()
t()